Greece is littered with archaeology ruins -- many legendary, others unheralded, all inspiring due to the heroics and drama of the ancient world. The beauty is that you can reach most all of these sites by bicycle, a fitting form of locomotion as it relies on your own divine energy.
SPARTA Each year Greek cyclists (and a few foreigners) bike from Athens to Sparta in one day to replicate Phidippedis' route when he ran from Marathon to enlist the Spartans help in battle against the Persians. The Spartakiada is not a race. The honor is in finishing.
MYSTRAS Today a UNESCO World Heritage Site, Mystras was once a prosperous town near Sparta and the last center of Byzantine scholarship. The 5.5 kilometer road connecting Mystras with Sparti is where racers sprint on Sunday morning after the annual Spartakiada (a 250 km ride in one day from Athens to Sparti).
ANCIENT MYCENAE The route from Nafplio to Ancient Mycenae is a serene rural road with orange and lemon trees, a few small towns and basically flat until you approach Mycenae and then it's a mild 3 kilometer climb.
MESSENIA Messenia is in central Peloponnese and was conquered by the Spartans. Many Messenians fled to Sicily and other parts of Magna Graecia. There are many mountains roads in the vicinity of Messenia, most of them thankfully sparse of four wheeled traffic.
KNOSSOS The Minoan Empire in Crete was the first civilization on European soil. The archaeology site lies on a very busy north-south highway but only kilometers away is a rural road going to the charming town of Arhanes.
ORACLE OF DEATH Near Prevaza is the Necromanteion where the faithful came to talk to their dead ancestors walking through a series of underground tunnels. The site is an easy detour of the main highway from Preveza to Arta.
METEORA The amazing Byzantine monasteries atop pinnacle rock spires are surrounded by dirt roads with idyllic fat tire biking conditions. Carry your own gear,,camp out,in abandoned churches, drink cold mountain spring water, breathe pure air.