The glowing blue Nymphaeum of Emperor Tiberius.

According to legend, this small island was home to one of the sirens met by Ulysses in the Odyssey.

Rainbow shutters decorate this former police station.

This statue was a gift to commemorate the Thai monarch's first visit to a foreign land.

Singapore's oldest Hindu temple.

This Singaporean food-court stall was home to the world's cheapest Michelin-starred meal.

A manifestation of modernist architectural ideas, this massive, multi-purpose building was one of the first of its kind in Southeast Asia.

This royal shrine and cemetery is hidden amidst modern public housing.

This statue once earned the distinction as one of the "Three Major Disappointments of the World."

Colorful umbrella-covered trees in Singapore's Little India look straight out of Dr. Seuss.

Little India's hidden gem of kindness and good food.

This house is one of the most colorful in the country, and is the last remaining example of a historic villa.

A public statue crafted by Singapore's pioneering sculptor, Ng Eng Teng.

The history of those incarcerated in Singapore during World War II is etched into the bricks of a popular staircase.

A former reservoir that was only recently discovered after more than 60 years of disuse.

Across this single-file rope bridge is what has been claimed to be the edge of continental Asia.

This massive chalk hill carving is one of England's most beloved giant horse geoglyphs.

The geoglyph once sported a glass bottle eye.

The largest stone circle in the world has ended up bringing up more questions than it has answered.

This strategically placed hill fort has served defensive forces from the Iron Age up until the 20th century.

The granddaddy of English geoglyphs dates back to the late Bronze Age.

This hilarious English intersection is an automotive whirlpool.

The designer of this railway tunnel added a birthday present for himself.

An Iron Age hillfort rooted in Arthurian legend was made famous by musician Peter Gabriel.