The world's smallest park was dedicated in 1948 as the only colony for leprechauns west of Ireland.

Portlandia is the second-largest copper repoussé statue in the United States.

The magic's in the hole!

A vertically floating hemlock controls the waves and weather at Crater Lake.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

360-degree virtual reality chamber physically immerses scientists into their data.

The only recreation of William Shakespeare's indoor playhouse.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

Buenos Aires' city of the dead contains some very famous remains, including Eva Perón.

Inside an old airplane hangar, friends and strangers alike play on a massive trampoline.

At 207 feet, one of the world's longest continuous escalators.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

Medical and zoological curiosities for sale.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

An organ located deep within a cave, whose "pipes" are the geological features of the cave itself.

A tunnel of hardened lava along Maui’s famous Road to Hana.