It's not quite as old as its Roman appearance suggests, but this piece of infrastructure served Guatemala City for centuries.

Sparkling, calcite-covered skeletons of children who may have been sacrificed to appease an angry god.

More than 250 sakes are available in an izakaya hidden in the basement of a Midtown office building.

One of the oldest restaurants in the Seychelles.

This vestige of Seychelles’s colonial past now resides in a busy intersection and didn’t chime for its first 96 years.

A British general, a suggestive tree, a map of paradise.

This small group of sand dunes manages to pack in a strange rainbow of colors.

Réunion Island's highest point is a two-million-year-old volcano and a paraglider's paradise.

Texas’s first suspension bridge is still carrying people across the Brazos.

The European Union’s tallest freestanding structure provides radio and television broadcasting to half of Latvia.

Art museum based around the collections accumulated over 58 years by one eccentric thrift store owner.

The world’s largest truck stop includes a barber shop, chiropractor, and a huge museum with antique trucks.

Historic beer hall in Bucharest with magnificent stained glass and a lively folk band.

The site of William McKinley's tragic assassination is only marked by an underwhelming boulder.

The wooden octagon in which Huckleberry Finn and A Connecticut Yankee were born can still be visited in upstate New York.

See an anatomy teaching collection assembled in the 1920s and 1930s.

This island castle contains enough secret passageways to support a season of Scooby-Doo episodes.

One of the largest underground systems runs under Canada's largest urban center.

A miniature representation of Canadian cities and landmarks in incredible—and sometimes hilarious—detail.

One of Canada's most incredible rare book collections holds hundreds of thousands of gorgeous tomes that the general public can touch.

This historic library honors the legacy of the British Empire's first children's librarian.

This Las Vegas casino boasts one of only three spiral escalators in the United States—an engineering wonder.

The world's first funicular powered by a steam engine.

A bibliophile's heaven that contains hundreds of bookstores, offering over a third of secondhand books for sale in Tokyo.