It's about one-three-thousandth as tall as Mount Everest
In other words, 10 feet is 0.000344451 times the height of Mount Everest, and the height of Mount Everest is 2,903.170 times that amount.(a.k.a. Mount Chomolungma, a.k.a. Sagarmatha, a.k.a. Mount Qomolangma, a.k.a. सगरमाथा, a.k.a. Chajamlungma, a.k.a. ཇོ་མོ་གླང་མ, a.k.a. 珠穆朗玛峰, a.k.a. Zhūmùlǎngmǎ Fēng) (Sagarmatha Zone, Nepal and Tibet, China) (to summit, excluding snow depth)
Mount Everest rises 29,031.70 feet above sea level at its summit. The plate tectonics of the Indian subcontinent continuously alter the mountain's peak â€” raising it by 0.0131234 feet and shifting it to the northeast by 0.0147638 feet each year.
It's about one-three-thousandth as tall as a Mauna Loa
In other words, 10 feet is 0.0003325 times the height of a Mauna Loa, and the height of a Mauna Loa is 3,008 times that amount.(Hawaii) (Hawaiian island volcano) (total height from seafloor)
Mauna Loa, one of the five volcanoes which forms the island of Hawaii and the tallest mountain in total height in the world, rises to 30,180 feet above the seafloor. The peak of Loa is home to the approximately 6,000 sq. m (0.6 ha) Lake Waiau, one of the highest altitude lakes in the United States outside of Colorado.
It's about one-three-thousand-five-hundredth as tall as Maxwell Montes
In other words, the height of Maxwell Montes is 3,600 times 10 feet.(Ishtar Terra, Venus)
Maxwell Montes rises to a total height of 36,000 feet. Since Venus does not seem to have the kind of tectonic activity which gives rise to mountains on Earth, the origin of the Venusian mountain remains the subject of some dispute.
It's about one-three-thousand-five-hundredth as deep as The Challenger Deep (Marianas Trench)
In other words, 10 feet is 0.00027958 times the depth of The Challenger Deep (Marianas Trench), and the depth of The Challenger Deep (Marianas Trench) is 3,576.80 times that amount.(near Marianas Islands, a.k.a. Ladrones Islands, northwestern Pacific Ocean) (depth below sea level)
The Challenger Deep, at the southern end of the Marianas Trench, reaches a depth of 35,768 feet below sea level. The first manned expedition to the bottom of Challenger Deep took 4 hours and 48 minutes in 1960. This was the only manned descent to the floor of the Trench until 2012, when director James Cameron made the trip; several other descents have been made since then.
It's about one-nine-thousandth as tall as Olympus Mons
In other words, 10 feet is 0.00011 times the height of Olympus Mons, and the height of Olympus Mons is 9,100 times that amount.(a.k.a. Mount Olympus) (Mars)
The tallest mountain in the solar system, Olympus Mons rises to approximately 89,000 feet. The mountain has been known to astronomers since the nineteenth century because it is tall enough to rise above Mars' frequent dust storms.
It's about one-thirty-thousandth as long as The Panama Canal
In other words, the length of The Panama Canal is 29,000 times 10 feet.(Canal de Panamá) (Panama)
Connecting the Atlantic and Pacific Oceans across the Isthmus of Panama, the Canal measures 290,000 feet in length. Ships passing through the Canal are raised (and then lowered) 85 feet above sea level through the lock-and-dam system.
It's about 30,000 times as tall as a sheet of Paper